Oceans And Currents: Question Preview (ID: 14691)


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How does downwelling help the ocean?
a) Brings nutrients down from the surface b) Brings nutrients up from the bottom c) Brings oxygen down from the surface d) Brings oxygen up from the bottom
Which three things are transported by the Great Ocean Conveyor Belt?
a) Oxygen, nutrients, heat b) Oxygen, nutrients, wind c) Heat, oxygen, ships d) Nutrients, heat, salt
This uses sound waves to map the ocean floor?
a) GPS b) sonar c) soundings d) radar
This is how currents move in the southern hemisphere
a) Clockwise b) Up and down c) Random d) Counterclockwise
What is the deepest place in the Pacific ocean?
a) Mariana trench b) Peru trench c) Dead sea d) Grand canyon
How does upwelling help the ocean?
a) Brings nutrients down from the surface b) Brings nutrients up from the bottom c) Brings oxygen down from the surface d) Brings oxygen up from the bottom
How many years does it take water to go through the Great Ocean conveyor belt?
a) 100 b) 10 c) 10000 d) 1000
In what direction does the Gulf Stream circulate?
a) Clockwise b) Up and down c) Random d) Counterclockwise
What causes surface currents?
a) Density differences b) Swimming fish c) Wind d) Salinity differences
Thermohaline currents are created by differences in
a) salinity and temperature b) sunlight and pressure c) temperature and sunlight d) windspeed and salinity
This sea floor feature was once above water during the ice age
a) mid ocean ridge b) trench c) continental slope d) continental shelf
How is Iceland affected by the gulf stream
a) It does not affect Iceland b) It gives Iceland a warmer climate than it should have c) It gives Iceland its cold, icy climate d) It causes Icelands volcanic activity
This new technology gives a high definition map of the sea floor
a) GPS sattelites b) sonar c) radar d) MRI mapping
Pressure and salinity both do this as you go down in depth in the ocean
a) Increase b) Decrease c) Stay the same d) Go up and down
These two oceans are growing
a) Indian and Pacific b) Pacific and Atlantic c) Atlantic and Indian d) Atlantic and Arctic
The oceans are saltiest in the
a) Tropics b) Polar regions c) Temperate zones d) North Pacific
The place where the temperature drops rapidly is called the
a) Heatcline b) Heliocline c) Halocline d) Thermocline
The place where the salinity drops rapidly is called the
a) Halocline b) Thermocline c) Autocline d) Heliocline
Who first mapped the Gulf Stream
a) Ben Franklin b) Thomas Jefferson c) George Washington d) Jaque Cousteau
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